Texas Instruments LM5158EVM-BST, User Manual

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4 Test Setup and Procedure
4.1 Test Setup
Figure 4-1 shows the correct jumper positions to configure the evaluation module for the typical application, as
shown in Figure 2-1 . The correct equipment connections and measurement points are shown in Table 4-1
Table 4-1. Standard Configuration Jumper Connections
JUMPER POSITION
J7 Jumper from pin 2 to pin 3
J10 Jumper from pin 3 to pin 4 (HS)
Figure 4-1. Test Setup
4.2 Test Equipment
• Power Supply : The input voltage source (VIN) should be a variable supply capable of 0 V to 10 V and
source at least 10 A.
• Multi-meters :
– Voltmeter 1: Input voltage. Connect from VIN+ to VIN–.
– Voltmeter 2: Output voltage. Connect from VOUT+ to GND.
– Ammeter 1: Input current. Must be able to handle 10 A. Shunt resistor can be used as needed.
– Ammeter 2: Output current. Must be able to handle 2 A. Shunt resistor can be used as needed.
• Electronic Load : The load should be constant resistance (CR) or constant current (CC) capable. It should
safely handle 2 A at 12 V.
• Oscilloscope : 20-MHz bandwidth and AC coupling. Measure the output voltage ripple directly across an
output capacitor with a short ground lead. It is not recommended to use a long-leaded ground connection due
to the possibility of noise being coupled into the signal. To measure other waveforms, adjust the oscilloscope
as needed.
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SNVU783 – OCTOBER 2021
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